A textbook and working guide for the ambitious apprentice, busy mechanic or trade school student, giving a practical explanation of the properties of circles, the mensuration of surfaces and solids, simple geometrical drawing, the forming of seams, laps and joints, and one hundred problems on the layout and cutting of Conical Vessels, Elbows and Piping, Furnace Fittings, Ducts, Gutters, Leaders and Roofing, Tinclad Fireproof Doors, Cornice and Skylight Work; with ninety-two tables and many shop kinks, recipes, and formulas.

A practical workshop companion containing rules for describing various kinds of patterns used by tin, sheet-iron and copper-plate workers; practical geometry; mensuration of surfaces and solids; tables of the weights and strengths of metals and other materials; tables of areas and circumferences of circles; composition of metallic alloys and solders; with numerous valuable receipts and manipulations for every-day use in the workshop.

BY LEROY J. BLINN

NEW YORK, HENRY CAREY BAIRD & CO., 1920

PRACTICAL SHEET METAL WORK AND DEMONSTRATED PATTERNS

A comprehensive treatise in several volumes on shop and outside practice and pattern drafting.

A Comprehensive Treatise for Cutters, Draftsmen, Foremen and Students. Progressing from the simplest phases of the subject to the most complex problems employed in the development of Sheet Metal Patterns. With practical solutions of numerous problems of frequent occurrence in sheet metal shops.

FOR THE USE OF BOILERMAKERS, BRAZIERS, COPPERSMITHS, IRONWORKERS, PLUMBERS, SHEET METALWORKERS, TINSMITHS, WHITESMITHS, ZINCWORKERS, AND OTHERS WHO REQUIRE A KNOWLEDGE OF THE WORKING UP OF METALS OR DEVELOPMENT OF SURFACES

Tell in plain English how to figure the proper sizes of articles, how to take off the material required from the plans of any sheet metal job, how to buy material and cut it to advantage for different work, how to figure the actual overhead expense for any department, or kind of work handled, in your own shop, and explains the special risks to be considered in making bids, financing, etc.